Home / 20,698,680.80-31,048,021.20-7,234,104.80

Finding the Fourth Proportional to 20,698,680.80, 31,048,021.20 and 7,234,104.80

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Solution

The fourth proportional to 20,698,680.80, 31,048,021.20 and 7,234,104.80 is: 10,851,157.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,698,680.80 : 31,048,021.20 = 7,234,104.80 : x
  2. Step 2: Convert to fraction form
    20,698,680.80/31,048,021.20 = 7,234,104.80/x
  3. Step 3: Cross multiply
    20,698,680.80x = 31,048,021.20 × 7,234,104.80
  4. Step 4: Simplify right side
    20,698,680.80x = 224,604,639,193,421.75
  5. Step 5: Solve for x
    x = 224,604,639,193,421.75/20,698,680.80
  6. Step 6: Final answer
    x = 10,851,157.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.